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    Sheet folding processing apparatus and image forming system including the same
    2.
    发明授权
    Sheet folding processing apparatus and image forming system including the same 有权

    公开(公告)号：US11167950B2

    公开(公告)日：2021-11-09

    申请号：US16843141

    申请日：2020-04-08

    申请人： Keiichi Atsumi ,  Akihito Sakano

    发明人： Keiichi Atsumi ,  Akihito Sakano

    IPC分类号： B65H45/14 ,  B65H45/20 ,  B65H45/04

    摘要： A sheet folding processing apparatus performs folding processing on continuously conveyed sheets without lowering productivity. A sheet folding processing apparatus includes a conveyance roller pair, a folding roller pair forming a plurality of fold lines by bending a sheet conveyed from the conveyance roller pair in Z-shape, an additional folding roller and a lower folding guide arranged downstream of the folding roller pair to face each other and pressing the fold line of the sheet in corporation with each other, and a controller controlling operation of the above. The controller controls the folding roller pair to convey the sheet with the fold line downstream in a conveyance direction until the fold line passes through the additional folding position by a predetermined conveyance amount, to return the sheet upstream by reversely rotating the folding roller pair, and to position the fold line to the additional folding position for additional folding processing.

    SHEET FOLDING PROCESSING APPARATUS AND IMAGE FORMING SYSTEM INCLUDING THE SAME
    3.
    发明申请
    SHEET FOLDING PROCESSING APPARATUS AND IMAGE FORMING SYSTEM INCLUDING THE SAME 审中-公开

    公开(公告)号：US20200324994A1

    公开(公告)日：2020-10-15

    申请号：US16843141

    申请日：2020-04-08

    申请人： Keiichi ATSUMI ,  Akihito SAKANO

    发明人： Keiichi ATSUMI ,  Akihito SAKANO

    IPC分类号： B65H45/14 ,  B65H45/04 ,  B65H45/20

    摘要： A sheet folding processing apparatus performs folding processing on continuously conveyed sheets without lowering productivity. A sheet folding processing apparatus includes a conveyance roller pair, a folding roller pair forming a plurality of fold lines by bending a sheet conveyed from the conveyance roller pair in Z-shape, an additional folding roller and a lower folding guide arranged downstream of the folding roller pair to face each other and pressing the fold line of the sheet in corporation with each other, and a controller controlling operation of the above. The controller controls the folding roller pair to convey the sheet with the fold line downstream in a conveyance direction until the fold line passes through the additional folding position by a predetermined conveyance amount, to return the sheet upstream by reversely rotating the folding roller pair, and to position the fold line to the additional folding position for additional folding processing.

    SHEET FOLDING APPARATUS AND IMAGE FORMING APPARATUS
    4.
    发明申请
    SHEET FOLDING APPARATUS AND IMAGE FORMING APPARATUS 有权

    公开(公告)号：US20220204307A1

    公开(公告)日：2022-06-30

    申请号：US17560829

    申请日：2021-12-23

    申请人： Keiichi ATSUMI ,  Akihito SAKANO ,  Akito YODA

    发明人： Keiichi ATSUMI ,  Akihito SAKANO ,  Akito YODA

    IPC分类号： B65H37/06 ,  B65H5/06 ,  B65H45/04 ,  B65H7/02

    摘要： A sheet folding apparatus includes a folding roller pair that forms a first fold line owing to that the folding roller pair nips a first position of the sheet, which has a loop to be formed on an upstream side of the folding roller pair due to continuous conveyance of the sheet by a conveyance roller pair in a stopped state in which a front end of the sheet being conveyed from the conveyance roller pair is nipped by the folding roller pair, as starting conveyance of the sheet while a pushing plate is pushing the sheet and moving toward the folding roller pair, and thereafter, forms a second fold line owing to that the folding roller pair nips a second position of the sheet with the loop formed as aligning with a rear end of the sheet.